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RISS 인기검색어
- 검색키워드
- 저자 : Yuanze Chen (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
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Structural behavior of sandwich composite wall with truss connectors under compression
Ying Qin,Xin Chen,Xingyu Zhu,Wang Xi,Yuanze Chen 국제구조공학회 2020 Steel and Composite Structures, An International J Vol.35 No.2
Sandwich composite wall consists of concrete core attached by two external steel faceplates. It combines the advantage of steel and concrete. The appropriate composite action between steel faceplate and concrete core is achieved by using adequate mechanical connectors. This research studied the compressive behavior of the sandwich composite walls using steel trusses to bond the steel faceplates to concrete infill. Four short specimens with different wall width and thickness of steel faceplate were designed and tested under axial compression. The test results were comprehensively evaluated in terms of failure modes, load versus axial and lateral deformation responses, resistance, stiffness, ductility, strength index, and strain distribution. The test results showed that all specimens exhibited high resistance and good ductility. Truss connectors offer better restraint to walls with thinner faceplates and smaller wall width. In addition, increasing faceplate thickness is more effective in improving the ultimate resistance and axial stiffness of the wall.
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Eccentric compressive behavior of novel composite walls with T-section
Ying Qin,Xin Chen,Wang Xi,Xingyu Zhu,Yuanze Chen 국제구조공학회 2020 Steel and Composite Structures, An International J Vol.35 No.4
Double skin composite walls are alternatives to concrete walls to resist gravity load in structures. The composite action between steel faceplates and concrete core largely depends on the internal mechanical connectors. This paper investigates the structural behavior of novel composite wall system with T section and under combined compressive force and bending moment. The truss connectors are used to bond the steel faceplates to concrete core. Four short specimens were designed and tested under eccentric compression. The influences of the thickness of steel faceplates, the truss spacing, and the thickness of web wall were discussed based on the test results. The N-M interaction curves by AISC 360, Eurocode 4, and CECS 159 were compared with the test data. It was found that AISC 360 provided the most reasonable predictions.
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Behavior of L-shaped double-skin composite walls under compression and biaxial bending
Ying Qin,Xin Chen,Wang Xi,Xingyu Zhu,Yuanze Chen 국제구조공학회 2020 Steel and Composite Structures, An International J Vol.37 No.4
The application of double-skin composite wall should meet different layout plans. However, most available research focused on the rectangular section with uniform axial compression. In this research, the structural behavior of double-skin composite wall with L section was studied. Due to the unsymmetric geometric characteristics, the considered loading condition combined the axial compression and biaxial bending. Five specimens were designed and tested under eccentric compression. The variables in the test included the width of the web wall, the truss spacing, the thickness of the steel faceplate, and the thickness of the web wall. The test results were discussed in terms of the load-displacement responses, buckling behavior, stiffness, ductility, strength utilization, strain distribution. Two modern codes were employed to predict the interaction between the axial compression and the biaxial bending. The method to calculate the available bending moment along the two directions was proposed. It was found that CECS 159:2004 offers more suitable results than AISC 360.
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